Fire door opening and closing structure of stairwell
A technology for opening and closing structures and fire doors, applied in fire doors, windows/doors, building components, etc., can solve the problems of poor fire resistance of fire doors, easy damage of fire doors, and large space occupied, and achieve the effect of fire prevention and smoke prevention. Good, easy to control, easy to place effect
Active Publication Date: 2019-10-11
DANYANG HUAMING OPTICS
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Problems solved by technology
[0004] The above scheme solves the problem of poor fireproof ability of fire doors and easy damage of fire doors to a certain extent, but there are still many deficiencies in this scheme, for example, due to its U-shaped installation structure, the operation of fire doors is not The anti-smoke effect is average, and the space occupied is slightly larger
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[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] like Figure 1-5 As shown, the opening and closing structure of the fire door in the stairwell is set on the door frame 1 above the stair step 2, and the door frame 1 is hinged with a door body 11, and the stair steps 2 are distributed upwardly and pass through the door frame 1 in turn. Both sides of the stair step 2 are respectively provided with upwardly extending platforms 21, and the two sides of the door frame body 1 are respectively installed on the platforms 21, and the platform 21 is provided with a step channel 3 located on one side of the door body 11 and used to expose the stair steps 2 The bottom side of one end of the door body 11 away from the opening direction is provided with a fireproof sealing plate 4 capable of closing the step passage 3 and having a honeycomb hollow structure through a detachable hinged stru...
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The invention relates to an on-and-off structure of a fireproof door of a staircase, and solves the problems of inconvenient operation and poor fireproof effect of a prior fireproof door. The structure comprises a fireproof sealing plate arranged on the door body, one side of the fireproof sealing plate is hinged with the door body, the other side of the fireproof sealing plate is abutted on a platform, a mounting groove is arranged on the platform, a jacking block is arranged in the mounting groove through a mounting structure, the upper end of the jacking block is outside the upper end of the mounting groove and extends into the gap, one side of the fireproof sealing plate, hinged with the door body, is provided with a jacking seat, and when the door body rotates relative to the door frame, the jacking seat and the jacking block are pressed against each other and the jacking seat swings around the jacking block so as to drive the fireproof sealing plate to swing circumferentially towards one side of the door body. According to the invention, the structure has the advantages of simple and flexible operation and excellent fireproof and smoke-preventing effects, effective expansionof indoor space, protection of ground and the like.
Description
technical field [0001] The invention belongs to the technical field of door and window equipment, and in particular relates to an opening and closing structure of a fireproof door in a stairwell. Background technique [0002] As people pay more attention to fire, the application of fire doors has also received great attention. Fire doors generally refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is generally located in fire compartments, evacuation stairwells, vertical shafts and other fire partitions with certain fire resistance. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of people. The occurrence of fire has greatly threatened the safety of people's lives and properties, and fire prevention is everyone's d...
Claims
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IPC IPC(8): E06B5/16E06B7/28
Inventor 戚周颖
Owner DANYANG HUAMING OPTICS